(k)"industrial dispute" means any dispute or difference between employers and employers, or between employers and workmen, or between workmen and workmen, which is connected with the employment or non-employment or the terms of employment or with the conditions of labour, of any person;(ka)[ "industrial establishment or undertaking" means an establishment or undertaking in which any industry is carried on: [ Inserted by Act 46 of 1982, Section 2 (w.e.f. 21.8.1984).]